This engaging book tells the story of human evolution, asking ifman is indeed the ?chosen species? or merely anevolutionary accident. Written by world-renowned paleoanthropologists who areco-directors of the excavations at Atapuerca---a World HeritageSite and Europe?s oldest known burial site---where a newhuman species, homo antecessor, was discovered Discusses various hypotheses of human evolution, drawingconclusions from verifiable facts and well-founded argument Offers a compelling narrative written for nonspecialists andstudents of human evolution Includes over 60 illustrations Sold over 100,000 copies in the original Spanish-languageedition